#include "lcd.h"
#include "font.h"
			 
//LCD的画笔颜色和背景色	   
u16 POINT_COLOR = 0x0000;// 画笔颜色
u16 BACK_COLOR  = 0xFFFF;// 背景色

//管理LCD重要参数
//默认为竖屏
_lcd_dev lcddev;

//写寄存器函数
//regval:寄存器值
void LCD_WR_REG(u16 regval){
	LCD->LCD_REG = regval;//写入要写的寄存器序号	 
}
//写LCD数据
//data:要写入的值
void LCD_WR_DATA(u16 data){										    	   
	LCD->LCD_RAM=data;		 
}
//读LCD数据
//返回值:读到的值
u16 LCD_RD_DATA(void){										    	   
	return LCD->LCD_RAM;		 
}					   
//写寄存器
//LCD_Reg:寄存器地址
//LCD_RegValue:要写入的数据
void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue){	
	LCD->LCD_REG = LCD_Reg;		//写入要写的寄存器序号	 
	LCD->LCD_RAM = LCD_RegValue;//写入数据	    		 
}	   
//读寄存器
//LCD_Reg:寄存器地址
//返回值:读到的数据
u16 LCD_ReadReg(u8 LCD_Reg){										   
	LCD_WR_REG(LCD_Reg);		//写入要读的寄存器序号
	Delay_us(5);		  
	return LCD_RD_DATA();		//返回读到的值
}   
//开始写GRAM
void LCD_WriteRAM_Prepare(void){
 	LCD->LCD_REG=lcddev.wramcmd;	  
}	 
//LCD写GRAM
//RGB_Code:颜色值
void LCD_WriteRAM(u16 RGB_Code){							    
	LCD->LCD_RAM = RGB_Code;//写十六位GRAM
}
//从ILI93xx读出的数据为GBR格式，而我们写入的时候为RGB格式。
//通过该函数转换
//c:GBR格式的颜色值
//返回值：RGB格式的颜色值
u16 LCD_BGR2RGB(u16 c){
	u16  r,g,b,rgb;   
	b=(c>>0)&0x1f;
	g=(c>>5)&0x3f;
	r=(c>>11)&0x1f;	 
	rgb=(b<<11)+(g<<5)+(r<<0);		 
	return(rgb);
} 
//当mdk -O1时间优化时需要设置
//延时i
void opt_delay(u8 i){
	while(i--);
}
// 读取个某点的颜色值	 
// x,y:坐标
// 返回值:此点的颜色
u16 LCD_ReadPoint(u16 x, u16 y) {
 	u16 r=0,g=0,b=0;
	if(x>=lcddev.width||y>=lcddev.height) return 0;	//超过了范围,直接返回		   
	LCD_SetCursor(x,y);	    
	if(lcddev.id==0X9341||lcddev.id==0X6804)
		LCD_WR_REG(0X2E);//9341/6804 发送读GRAM指令
	else 
		LCD_WR_REG(R34);      		 				//其他IC发送读GRAM指令
 	if(lcddev.id==0X9320)
		opt_delay(2);				//FOR 9320,延时2us	    
	if(LCD->LCD_RAM)
		r=0;							//dummy Read	   
	opt_delay(2);	  
 	r=LCD->LCD_RAM;  		  						//实际坐标颜色
 	if(lcddev.id==0X9341)//9341要分2次读出
 	{
		opt_delay(2);	  
		b=LCD->LCD_RAM; 
		g=r&0XFF;//对于9341,第一次读取的是RG的值,R在前,G在后,各占8位
		g<<=8;
	}
	else if(lcddev.id==0X6804)
		r=LCD->LCD_RAM;//6804第二次读取的才是真实值
	if(lcddev.id==0X9325||lcddev.id==0X4535||lcddev.id==0X4531||lcddev.id==0X8989||lcddev.id==0XB505)
		return r;//这几种IC直接返回颜色值
	else if(lcddev.id==0X9341)
		return (((r>>11)<<11)|((g>>10)<<5)|(b>>11));	//ILI9341需要公式转换一下
	else 
		return LCD_BGR2RGB(r);												//其他IC
}			 
//LCD开启显示
void LCD_DisplayOn(void){					   
	if(lcddev.id==0X9341||lcddev.id==0X6804)
		LCD_WR_REG(0X29);	//开启显示
	else 
		LCD_WriteReg(R7,0x0173); 			//开启显示
}	 
//LCD关闭显示
void LCD_DisplayOff(void){	   
	if(lcddev.id==0X9341||lcddev.id==0X6804)
		LCD_WR_REG(0X28);	//关闭显示
	else 
		LCD_WriteReg(R7,0x0);//关闭显示 
}   
//设置光标位置
//Xpos:横坐标
//Ypos:纵坐标
void LCD_SetCursor(u16 Xpos, u16 Ypos) {	 
 	if(lcddev.id==0X9341||lcddev.id==0X6804)
	{		    
		LCD_WR_REG(lcddev.setxcmd); 
		LCD_WR_DATA(Xpos>>8); 
		LCD_WR_DATA(Xpos&0XFF);	 
		LCD_WR_REG(lcddev.setycmd); 
		LCD_WR_DATA(Ypos>>8); 
		LCD_WR_DATA(Ypos&0XFF);
	}else
	{
		if(lcddev.dir==1)Xpos=lcddev.width-1-Xpos;//横屏其实就是调转x,y坐标
		LCD_WriteReg(lcddev.setxcmd, Xpos);
		LCD_WriteReg(lcddev.setycmd, Ypos);
	}	 
} 		 
//设置LCD的自动扫描方向
//注意:其他函数可能会受到此函数设置的影响(尤其是9341/6804这两个奇葩),
//所以,一般设置为L2R_U2D即可,如果设置为其他扫描方式,可能导致显示不正常.
//dir:0~7,代表8个方向(具体定义见lcd.h)
//9320/9325/9328/4531/4535/1505/b505/8989/5408/9341等IC已经实际测试	   	   
void LCD_Scan_Dir(u8 dir) {
	u16 regval=0;
	u8 dirreg=0;
	u16 temp;  
	if(lcddev.dir==1&&lcddev.id!=0X6804)//横屏时，对6804不改变扫描方向！
	{			   
		switch(dir)//方向转换
		{
			case 0:dir=6;break;
			case 1:dir=7;break;
			case 2:dir=4;break;
			case 3:dir=5;break;
			case 4:dir=1;break;
			case 5:dir=0;break;
			case 6:dir=3;break;
			case 7:dir=2;break;	     
		}
	}
	if(lcddev.id==0x9341||lcddev.id==0X6804)//9341/6804,很特殊
	{
		switch(dir)
		{
			case L2R_U2D://从左到右,从上到下
				regval|=(0<<7)|(0<<6)|(0<<5); 
				break;
			case L2R_D2U://从左到右,从下到上
				regval|=(1<<7)|(0<<6)|(0<<5); 
				break;
			case R2L_U2D://从右到左,从上到下
				regval|=(0<<7)|(1<<6)|(0<<5); 
				break;
			case R2L_D2U://从右到左,从下到上
				regval|=(1<<7)|(1<<6)|(0<<5); 
				break;	 
			case U2D_L2R://从上到下,从左到右
				regval|=(0<<7)|(0<<6)|(1<<5); 
				break;
			case U2D_R2L://从上到下,从右到左
				regval|=(0<<7)|(1<<6)|(1<<5); 
				break;
			case D2U_L2R://从下到上,从左到右
				regval|=(1<<7)|(0<<6)|(1<<5); 
				break;
			case D2U_R2L://从下到上,从右到左
				regval|=(1<<7)|(1<<6)|(1<<5); 
				break;	 
		}
		dirreg=0X36;
 		regval|=0X08;//BGR   
		if(lcddev.id==0X6804)regval|=0x02;//6804的BIT6和9341的反了	   
		LCD_WriteReg(dirreg,regval);
 		if(regval&0X20)
		{
			if(lcddev.width<lcddev.height)//交换X,Y
			{
				temp=lcddev.width;
				lcddev.width=lcddev.height;
				lcddev.height=temp;
 			}
		}else  
		{
			if(lcddev.width>lcddev.height)//交换X,Y
			{
				temp=lcddev.width;
				lcddev.width=lcddev.height;
				lcddev.height=temp;
 			}
		}  
		LCD_WR_REG(lcddev.setxcmd); 
		LCD_WR_DATA(0);LCD_WR_DATA(0);
		LCD_WR_DATA((lcddev.width-1)>>8);LCD_WR_DATA((lcddev.width-1)&0XFF);
		LCD_WR_REG(lcddev.setycmd); 
		LCD_WR_DATA(0);LCD_WR_DATA(0);
		LCD_WR_DATA((lcddev.height-1)>>8);LCD_WR_DATA((lcddev.height-1)&0XFF);  
  	}
	else 
	{
		switch(dir)
		{
			case L2R_U2D://从左到右,从上到下
				regval|=(1<<5)|(1<<4)|(0<<3); 
				break;
			case L2R_D2U://从左到右,从下到上
				regval|=(0<<5)|(1<<4)|(0<<3); 
				break;
			case R2L_U2D://从右到左,从上到下
				regval|=(1<<5)|(0<<4)|(0<<3);
				break;
			case R2L_D2U://从右到左,从下到上
				regval|=(0<<5)|(0<<4)|(0<<3); 
				break;	 
			case U2D_L2R://从上到下,从左到右
				regval|=(1<<5)|(1<<4)|(1<<3); 
				break;
			case U2D_R2L://从上到下,从右到左
				regval|=(1<<5)|(0<<4)|(1<<3); 
				break;
			case D2U_L2R://从下到上,从左到右
				regval|=(0<<5)|(1<<4)|(1<<3); 
				break;
			case D2U_R2L://从下到上,从右到左
				regval|=(0<<5)|(0<<4)|(1<<3); 
				break;	 
		}
		if(lcddev.id==0x8989)//8989 IC
		{
			dirreg=0X11;
			regval|=0X6040;	//65K   
	 	}else//其他驱动IC		  
		{
			dirreg=0X03;
			regval|=1<<12;  
		}
		LCD_WriteReg(dirreg,regval);
	}
}   
//画点
//x,y:坐标
//POINT_COLOR:此点的颜色
void LCD_DrawPoint(u16 x,u16 y) {
	LCD_SetCursor(x,y);		//设置光标位置 
	LCD_WriteRAM_Prepare();	//开始写入GRAM
	LCD->LCD_RAM=POINT_COLOR; 
}
//快速画点
//x,y:坐标
//color:颜色
void LCD_Fast_DrawPoint(u16 x,u16 y,u16 color) {	   
	if(lcddev.id==0X9341||lcddev.id==0X6804)
	{		    
		LCD_WR_REG(lcddev.setxcmd); 
		LCD_WR_DATA(x>>8); 
		LCD_WR_DATA(x&0XFF);	 
		LCD_WR_REG(lcddev.setycmd); 
		LCD_WR_DATA(y>>8); 
		LCD_WR_DATA(y&0XFF);
	}else
	{
 		if(lcddev.dir==1)x=lcddev.width-1-x;//横屏其实就是调转x,y坐标
		LCD_WriteReg(lcddev.setxcmd,x);
		LCD_WriteReg(lcddev.setycmd,y);
	}			 
	LCD->LCD_REG=lcddev.wramcmd; 
	LCD->LCD_RAM=color; 
}	 


//设置LCD显示方向（6804不支持横屏显示）
//dir:0,竖屏；1,横屏
void LCD_Display_Dir(u8 dir) {
	if(dir==0)//竖屏
	{
		lcddev.dir=0;//竖屏
		lcddev.width=240;	//--宽度
		lcddev.height=320;	//--高度
		if(lcddev.id==0X9341||lcddev.id==0X6804)
		{
			lcddev.wramcmd=0X2C;	//--开始写grammer指令
	 		lcddev.setxcmd=0X2A;
			lcddev.setycmd=0X2B;  	 
			if(lcddev.id==0X6804)
			{
				lcddev.width=320;
				lcddev.height=480;
			}
		}
	}
	else if(lcddev.id!=0X6804)//6804不支持横屏显示	
	{	  
		lcddev.dir=1;//横屏
		lcddev.width=320;
		lcddev.height=240;
		if(lcddev.id==0X9341)
		{
			lcddev.wramcmd=0X2C;
	 		lcddev.setxcmd=0X2A;
			lcddev.setycmd=0X2B;  	 
		}else if(lcddev.id==0X8989)
		{
			lcddev.wramcmd=R34;
	 		lcddev.setxcmd=0X4F;
			lcddev.setycmd=0X4E;  
		}else
		{
			lcddev.wramcmd=R34;
	 		lcddev.setxcmd=R33;
			lcddev.setycmd=R32;  
		}
	} 
	LCD_Scan_Dir(DFT_SCAN_DIR);	//默认扫描方向
}

//初始化lcd
//该初始化函数可以初始化各种ILI93XX液晶,但是其他函数是基于ILI9320的!!!
//在其他型号的驱动芯片上没有测试! 
/*******************************************************
    CS： TFTLCD 片选信号。
    WR：向 TFTLCD 写入数据。
    RD：从 TFTLCD 读取数据。
    D[15:0]: 16 位双向数据线。
    RST：硬复位 TFTLCD。
    RS：命令/数据标志（ 0，读写命令； 1，读写数据）
*******************************************************/
void LCD_Init(void)
{ 										  
	GPIO_InitTypeDef GPIO_InitStructure;
	FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
    FSMC_NORSRAMTimingInitTypeDef readWriteTiming; 
	FSMC_NORSRAMTimingInitTypeDef writeTiming;

    //使能FSMC时钟
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC,ENABLE);	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO,ENABLE);
 	
    // 复用推挽输出  
	GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_10;
 	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP; // GPIO_Mode_Out_PP
 	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(GPIOA, &GPIO_InitStructure);
    
 	// 复用推挽输出  
	GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_12;
 	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP;
 	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(GPIOA, &GPIO_InitStructure);
      
	// 复用推挽输出
	GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
 	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP; 
 	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(GPIOB, &GPIO_InitStructure);
      
   	// 复用推挽输出	
	GPIO_InitStructure.GPIO_Pin   = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
 	GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP;
 	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
 	GPIO_Init(GPIOC, &GPIO_InitStructure);

	readWriteTiming.FSMC_AddressSetupTime = 0x01;  // 地址建立时间（ADDSET）为2个HCLK 1/36M=27ns
    readWriteTiming.FSMC_AddressHoldTime  = 0x00;  // 地址保持时间（ADDHLD）模式A未用到	
    readWriteTiming.FSMC_DataSetupTime    = 0x0f;  // 数据保存时间为16个HCLK,因为液晶驱动IC的读数据的时候，速度不能太快，尤其对1289这个IC。
    readWriteTiming.FSMC_BusTurnAroundDuration = 0x00;
    readWriteTiming.FSMC_CLKDivision      = 0x00;
    readWriteTiming.FSMC_DataLatency      = 0x00;
    readWriteTiming.FSMC_AccessMode       = FSMC_AccessMode_A;	 //模式A 
    
	writeTiming.FSMC_AddressSetupTime     = 0x00;	// 地址建立时间（ADDSET）为1个HCLK  
    writeTiming.FSMC_AddressHoldTime      = 0x00;	// 地址保持时间（A		
    writeTiming.FSMC_DataSetupTime        = 0x03;   // 数据保存时间为4个HCLK	
    writeTiming.FSMC_BusTurnAroundDuration= 0x00;
    writeTiming.FSMC_CLKDivision          = 0x00;
    writeTiming.FSMC_DataLatency          = 0x00;
    writeTiming.FSMC_AccessMode           = FSMC_AccessMode_A;	// 模式A 

    FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;// 这里我们使用NE4 ，也就对应BTCR[6],[7]。

//    FSMC_NORSRAMInitStructure.FSMC_Bank               = FSMC_Bank1_NORSRAM1;       // 这里我们使用NE1 ，也就对应BTCR[6],[7]。
    FSMC_NORSRAMInitStructure.FSMC_DataAddressMux     = FSMC_DataAddressMux_Disable; // 不复用数据地址
    FSMC_NORSRAMInitStructure.FSMC_MemoryType         = FSMC_MemoryType_SRAM;        // SRAM   
    FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth    = FSMC_MemoryDataWidth_16b;    // 存储器数据宽度为16bit   
    FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode    = FSMC_BurstAccessMode_Disable;// FSMC_BurstAccessMode_Disable; 
    FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
	FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait   = FSMC_AsynchronousWait_Disable; 
    FSMC_NORSRAMInitStructure.FSMC_WrapMode           = FSMC_WrapMode_Disable;   
    FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive   = FSMC_WaitSignalActive_BeforeWaitState;  
    FSMC_NORSRAMInitStructure.FSMC_WriteOperation     = FSMC_WriteOperation_Enable;	 //  存储器写使能
    FSMC_NORSRAMInitStructure.FSMC_WaitSignal         = FSMC_WaitSignal_Disable;   
    FSMC_NORSRAMInitStructure.FSMC_ExtendedMode       = FSMC_ExtendedMode_Enable;    // 读写使用不同的时序
    FSMC_NORSRAMInitStructure.FSMC_WriteBurst         = FSMC_WriteBurst_Disable; 
    FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &readWriteTiming;         //读写时序
    FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct     = &writeTiming;             //写时序
    FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);

//   	FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);  // 使能BANK1 
			 
    FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
             
	Delay_ms(50);
 	LCD_WriteReg(0x0000,0x0001);
	Delay_ms(50);
    lcddev.id = LCD_ReadReg(0x0000);
    
    // 读到ID不正确,新增lcddev.id==0X9300判断，因为9341在未被复位的情况下会被读成9300    
  	if( (lcddev.id<0XFF) || (lcddev.id==0XFFFF) || (lcddev.id==0X9300) )
	{
 		//尝试9341 ID的读取		
		LCD_WR_REG(0XD3);				   
		LCD_RD_DATA(); 				//dummy read 	
 		LCD_RD_DATA();   	    	//读到0X00
  		lcddev.id=LCD_RD_DATA();   	//读取93								   
 		lcddev.id<<=8;
		lcddev.id|=LCD_RD_DATA();  	//读取41 	   			   
 		if(lcddev.id!=0X9341)		//非9341,尝试是不是6804
		{	
 			LCD_WR_REG(0XBF);				   
			LCD_RD_DATA(); 			//dummy read 	 
	 		LCD_RD_DATA();   	    //读回0X01			   
	 		LCD_RD_DATA(); 			//读回0XD0 			  	
	  		lcddev.id=LCD_RD_DATA();//这里读回0X68 
			lcddev.id<<=8;
	  		lcddev.id|=LCD_RD_DATA();//这里读回0X04	   	  
 		} 
		if(lcddev.id!=0X9341&&lcddev.id!=0X6804)
			lcddev.id=0x9341;//新增，用于识别9341 	     
	}
    // 9341初始化
	if(lcddev.id==0X9341)	   {	 
		LCD_WR_REG(0xCF);  
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0xC1); 
		LCD_WR_DATA(0X30); 
		LCD_WR_REG(0xED);  
		LCD_WR_DATA(0x64); 
		LCD_WR_DATA(0x03); 
		LCD_WR_DATA(0X12); 
		LCD_WR_DATA(0X81); 
		LCD_WR_REG(0xE8);  
		LCD_WR_DATA(0x85); 
		LCD_WR_DATA(0x10); 
		LCD_WR_DATA(0x7A); 
		LCD_WR_REG(0xCB);  
		LCD_WR_DATA(0x39); 
		LCD_WR_DATA(0x2C); 
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x34); 
		LCD_WR_DATA(0x02); 
		LCD_WR_REG(0xF7);  
		LCD_WR_DATA(0x20); 
		LCD_WR_REG(0xEA);  
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x00); 
		LCD_WR_REG(0xC0);    //Power control 
		LCD_WR_DATA(0x1B);   //VRH[5:0] 
		LCD_WR_REG(0xC1);    //Power control 
		LCD_WR_DATA(0x01);   //SAP[2:0];BT[3:0] 
		LCD_WR_REG(0xC5);    //VCM control 
		LCD_WR_DATA(0x30); 	 // //-3F
		LCD_WR_DATA(0x30); 	 // //=3C
		LCD_WR_REG(0xC7);    //VCM control2 
		LCD_WR_DATA(0XB7); 
		LCD_WR_REG(0x36);    // Memory Access Control 
		LCD_WR_DATA(0x48); 
		LCD_WR_REG(0x3A);   
		LCD_WR_DATA(0x55); 
		LCD_WR_REG(0xB1);   
		LCD_WR_DATA(0x00);   
		LCD_WR_DATA(0x1A); 
		LCD_WR_REG(0xB6);    // Display Function Control 
		LCD_WR_DATA(0x0A); 
		LCD_WR_DATA(0xA2); 
		LCD_WR_REG(0xF2);    // 3Gamma Function Disable 
		LCD_WR_DATA(0x00); 
		LCD_WR_REG(0x26);    //Gamma curve selected 
		LCD_WR_DATA(0x01); 
		LCD_WR_REG(0xE0);    //Set Gamma 
		LCD_WR_DATA(0x0F); 
		LCD_WR_DATA(0x2A); 
		LCD_WR_DATA(0x28); 
		LCD_WR_DATA(0x08); 
		LCD_WR_DATA(0x0E); 
		LCD_WR_DATA(0x08); 
		LCD_WR_DATA(0x54); 
		LCD_WR_DATA(0XA9); 
		LCD_WR_DATA(0x43); 
		LCD_WR_DATA(0x0A); 
		LCD_WR_DATA(0x0F); 
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x00); 		 
		LCD_WR_REG(0XE1);    //Set Gamma 
		LCD_WR_DATA(0x00); 
		LCD_WR_DATA(0x15); 
		LCD_WR_DATA(0x17); 
		LCD_WR_DATA(0x07); 
		LCD_WR_DATA(0x11); 
		LCD_WR_DATA(0x06); 
		LCD_WR_DATA(0x2B); 
		LCD_WR_DATA(0x56); 
		LCD_WR_DATA(0x3C); 
		LCD_WR_DATA(0x05); 
		LCD_WR_DATA(0x10); 
		LCD_WR_DATA(0x0F); 
		LCD_WR_DATA(0x3F); 
		LCD_WR_DATA(0x3F); 
		LCD_WR_DATA(0x0F); 
		LCD_WR_REG(0x2B); 
		LCD_WR_DATA(0x00);
		LCD_WR_DATA(0x00);
		LCD_WR_DATA(0x01);
		LCD_WR_DATA(0x3f);
		LCD_WR_REG(0x2A); 
		LCD_WR_DATA(0x00);
		LCD_WR_DATA(0x00);
		LCD_WR_DATA(0x00);
		LCD_WR_DATA(0xef);	 
		LCD_WR_REG(0x11); //Exit Sleep
		Delay_ms(120);
		LCD_WR_REG(0x29); //display on	
	}
	// 6804初始化
    else if(lcddev.id==0x6804) {
		LCD_WR_REG(0X11);
		Delay_ms(20);
		LCD_WR_REG(0XD0);//VCI1  VCL  VGH  VGL DDVDH VREG1OUT power amplitude setting
		LCD_WR_DATA(0X07); 
		LCD_WR_DATA(0X42); 
		LCD_WR_DATA(0X1D); 
		LCD_WR_REG(0XD1);//VCOMH VCOM_AC amplitude setting
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X1a);
		LCD_WR_DATA(0X09); 
		LCD_WR_REG(0XD2);//Operational Amplifier Circuit Constant Current Adjust , charge pump frequency setting
		LCD_WR_DATA(0X01);
		LCD_WR_DATA(0X22);
		LCD_WR_REG(0XC0);//REV SM GS 
		LCD_WR_DATA(0X10);
		LCD_WR_DATA(0X3B);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X02);
		LCD_WR_DATA(0X11);
		
		LCD_WR_REG(0XC5);// Frame rate setting = 72HZ  when setting 0x03
		LCD_WR_DATA(0X03);
		
		LCD_WR_REG(0XC8);//Gamma setting
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X25);
		LCD_WR_DATA(0X21);
		LCD_WR_DATA(0X05);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X0a);
		LCD_WR_DATA(0X65);
		LCD_WR_DATA(0X25);
		LCD_WR_DATA(0X77);
		LCD_WR_DATA(0X50);
		LCD_WR_DATA(0X0f);
		LCD_WR_DATA(0X00);	  
						  
   		LCD_WR_REG(0XF8);
		LCD_WR_DATA(0X01);	  

 		LCD_WR_REG(0XFE);
 		LCD_WR_DATA(0X00);
 		LCD_WR_DATA(0X02);
		
		LCD_WR_REG(0X20);//Exit invert mode

		LCD_WR_REG(0X36);
		LCD_WR_DATA(0X08);//原来是a
		
		LCD_WR_REG(0X3A);
		LCD_WR_DATA(0X55);//16位模式	  
		LCD_WR_REG(0X2B);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X01);
		LCD_WR_DATA(0X3F);
		
		LCD_WR_REG(0X2A);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X00);
		LCD_WR_DATA(0X01);
		LCD_WR_DATA(0XDF);
		Delay_ms(120);
		LCD_WR_REG(0X29); 	 
 	}
	/*
	else if(lcddev.id==0x9325)//9325	
	else if(lcddev.id==0x9328)//ILI9328   OK  	
	else if(lcddev.id==0x9320)//测试OK.	
	else if(lcddev.id==0X9331)//OK |/|/|			 	
	else if(lcddev.id==0x5408)		
	else if(lcddev.id==0x1505)//OK	
	else if(lcddev.id==0xB505)
	else if(lcddev.id==0xC505)
	else if(lcddev.id==0x8989)//OK |/|/|
	else if(lcddev.id==0x4531)//OK |/|/|
	else if(lcddev.id==0x4535)
	*/	
	LCD_Display_Dir(0);		 	// 默认为竖屏
	LCD_Clear(WHITE);
} 

#if 1
void LCD_ALL_PIC(u16 *PIC) {
	u32 index=0;      
	u32 totalpoint=lcddev.width;
	totalpoint*=lcddev.height; 	//得到总点数
	LCD_SetCursor(0x00,0x0000);	//设置光标位置 
	LCD_WriteRAM_Prepare();     //开始写入GRAM	 	  
	for(index=0;index<320*480;index++)
	{
		LCD->LCD_RAM=PIC[index];	   
	}
}
#endif

//清屏函数
//color:要清屏的填充色
void LCD_Clear(u16 color) {
	u32 index=0;      
	u32 totalpoint=lcddev.width;
	totalpoint*=lcddev.height; 	//得到总点数
	LCD_SetCursor(0x00,0x0000);	//设置光标位置 
	LCD_WriteRAM_Prepare();     //开始写入GRAM	 	  
	for(index = 0; index < totalpoint; index++)
	{
		LCD->LCD_RAM=color;	   
	}
}
//在指定区域内填充单个颜色
//(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)   
//color:要填充的颜色
void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color) {          
	u16 i,j;
	u16 xlen=0;
	xlen=ex-sx+1;	   
	for(i=sy;i<=ey;i++)
	{
	 	LCD_SetCursor(sx,i);      				//设置光标位置 
		LCD_WriteRAM_Prepare();     			//开始写入GRAM	  
		for(j=0;j<xlen;j++)LCD_WR_DATA(color);	//设置光标位置 	    
	}
}  
//在指定区域内填充指定颜色块			 
//(sx,sy),(ex,ey):填充矩形对角坐标,区域大小为:(ex-sx+1)*(ey-sy+1)   
//color:要填充的颜色
void LCD_Color_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 *color) {  
	u16 height,width;
	u16 i,j;
	width=ex-sx+1; 		//得到填充的宽度
	height=ey-sy+1;		//高度
 	for(i=0;i<height;i++)
	{
 		LCD_SetCursor(sx,sy+i);   	//设置光标位置 
		LCD_WriteRAM_Prepare();     //开始写入GRAM
		for(j=0;j<width;j++)
			LCD->LCD_RAM=color[i*width+j];//写入数据 
	}	

}  
//画线
//x1,y1:起点坐标
//x2,y2:终点坐标  
void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2) {
	u16 t; 
	int xerr=0,yerr=0,delta_x,delta_y,distance; 
	int incx,incy,uRow,uCol; 
	delta_x=x2-x1; //计算坐标增量 
	delta_y=y2-y1; 
	uRow=x1; 
	uCol=y1; 
	if(delta_x>0)incx=1; //设置单步方向 
	else if(delta_x==0)incx=0;//垂直线 
	else {incx=-1;delta_x=-delta_x;} 
	if(delta_y>0)incy=1; 
	else if(delta_y==0)incy=0;//水平线 
	else{incy=-1;delta_y=-delta_y;} 
	if( delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 
	else distance=delta_y; 
	for(t=0;t<=distance+1;t++ )//画线输出 
	{  
		LCD_DrawPoint(uRow,uCol);//画点 
		xerr+=delta_x ; 
		yerr+=delta_y ; 
		if(xerr>distance) 
		{ 
			xerr-=distance; 
			uRow+=incx; 
		} 
		if(yerr>distance) 
		{ 
			yerr-=distance; 
			uCol+=incy; 
		} 
	}  
}    
//画矩形	  
//(x1,y1),(x2,y2):矩形的对角坐标
void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2) {
	LCD_DrawLine(x1,y1,x2,y1);
	LCD_DrawLine(x1,y1,x1,y2);
	LCD_DrawLine(x1,y2,x2,y2);
	LCD_DrawLine(x2,y1,x2,y2);
}
//在指定位置画一个指定大小的圆
//(x,y):中心点
//r    :半径
void Draw_Circle(u16 x0,u16 y0,u8 r) {
	int a,b;
	int di;
	a=0;b=r;	  
	di=3-(r<<1);             //判断下个点位置的标志
	while(a<=b)
	{
		LCD_DrawPoint(x0+a,y0-b);             //5
 		LCD_DrawPoint(x0+b,y0-a);             //0           
		LCD_DrawPoint(x0+b,y0+a);             //4               
		LCD_DrawPoint(x0+a,y0+b);             //6 
		LCD_DrawPoint(x0-a,y0+b);             //1       
 		LCD_DrawPoint(x0-b,y0+a);             
		LCD_DrawPoint(x0-a,y0-b);             //2             
  		LCD_DrawPoint(x0-b,y0-a);             //7     	         
		a++;
		//使用Bresenham算法画圆     
		if(di<0)di +=4*a+6;	  
		else
		{
			di+=10+4*(a-b);   
			b--;
		} 						    
	}
}

#if 1
//-在指定位置显示一个字符
//-x,y:起始坐标
//-num:要显示的字符:" "--->"~"
//-size:字体大小 12/16   这是字体的高度
//-mode:叠加方式(1)还是非叠加方式(0)
void LCD_ShowChar(u16 x,u16 y,u8 num,u8 size,u8 mode) {  							  
    u8 temp,t1,t;
	u16 y0=y;
	u16 colortemp=POINT_COLOR;    
	
	//设置窗口		   
	num=num-' ';	//得到偏移后的值
	if(!mode) 		//非叠加方式
	{
	    for(t=0;t<size;t++)
	    {   
			if(size==12)
				temp=asc2_1206[num][t];  	//调用1206字体
			else 
				temp=asc2_1608[num][t];		 //调用1608字体 
				
	        for(t1=0;t1<8;t1++)
			{			    
		        if(temp&0x80)
					POINT_COLOR=colortemp;
				else 
					POINT_COLOR=BACK_COLOR;
				
				LCD_DrawPoint(x,y);	
				temp<<=1;
				y++;
				if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//超区域了
				if((y-y0)==size)	//--达到高度值
				{
					y=y0;
					x++;
					if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//超区域了
					break;
				}
			}  	 
	    }    
	}else//叠加方式
	{
	    for(t=0;t<size;t++)
	    {   
			if(size==12)temp=asc2_1206[num][t];  //调用1206字体
			else temp=asc2_1608[num][t];		 //调用1608字体 
			
	        for(t1=0;t1<8;t1++)
			{			    
		        if(temp&0x80)LCD_DrawPoint(x,y); 
				temp<<=1;
				y++;
				if(x>=lcddev.height){POINT_COLOR=colortemp;return;}//超区域了
				if((y-y0)==size)
				{
					y=y0;
					x++;
					if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//超区域了
					break;
				}
			}  	 
	    }     
	}
	POINT_COLOR=colortemp;	    	   	 	  
} 
#endif
//m^n函数
//返回值:m^n次方.
u32 LCD_Pow(u8 m,u8 n) {
	u32 result=1;	 
	while(n--)result*=m;    
	return result;
}
/*  显示数字,高位为0,则不显示
    x,y :起点坐标	 
    len :数字的位数
    size:字体大小
    color:颜色 
    num:数值(0~4294967295);	
*/
void LCD_ShowNum(u16 x,u16 y,u32 num,u8 len,u8 size) {         	
	u8 t,temp;
	u8 enshow=0;						   
	for(t=0;t<len;t++)
	{
		temp=(num/LCD_Pow(10,len-t-1))%10;
		if(enshow==0&&t<(len-1))
		{
			if(temp==0)
			{
				LCD_ShowChar(x+(size/2)*t,y,' ',size,1);
				continue;
			}else enshow=1; 
		 	 
		}
	 	LCD_ShowChar(x+(size/2)*t,y,temp+'0',size,1); 
	}
} 
/*  显示数字,高位为0,还是显示
    x,y:起点坐标
    num:数值(0~999999999);	 
    len:长度(即要显示的位数)
    size:字体大小
    mode:
    [7]:0,不填充;1,填充0.
    [6:1]:保留
    [0]:0,非叠加显示;1,叠加显示.
*/
void LCD_ShowxNum(u16 x,u16 y,u32 num,u8 len,u8 size,u8 mode) {  
	u8 t,temp;
	u8 enshow=0;						   
	for(t=0;t<len;t++)
	{
		temp=(num/LCD_Pow(10,len-t-1))%10;
		if(enshow==0&&t<(len-1))
		{
			if(temp==0)
			{
				if(mode&0X80)LCD_ShowChar(x+(size/2)*t,y,'0',size,mode&0X01);  
				else LCD_ShowChar(x+(size/2)*t,y,' ',size,mode&0X01);  
 				continue;
			}else enshow=1; 
		 	 
		}
	 	LCD_ShowChar(x+(size/2)*t,y,temp+'0',size,mode&0X01); 
	}
}

/*  显示字符串
    x,y:起点坐标
    width,height:区域大小  
    size:字体大小
    *p:字符串起始地址	
*/
void LCD_ShowString(u16 x,u16 y,u16 width,u16 height,u8 size,u8 *p) {         
	u8 x0=x;
	width+=x;
	height+=y;
    while((*p<='~')&&(*p>=' '))//判断是不是非法字符!
    {       
        if(x>=width){x=x0;y+=size;}
        if(y>=height)break;//退出
        LCD_ShowChar(x,y,*p,size,0);
        x+=size/2;
        p++;
    }  
}



/***************************************************************************************************************/





























